set_vm_config

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

The description only indicates that the tool modifies configuration (a destructive change) but provides no details on side effects, required privileges, or whether changes are applied immediately or require a restart. With no annotations, the description carries the full burden but fails to disclose these important behaviors.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a single efficient sentence without wasted words. However, it could be slightly expanded to include key usage notes without becoming verbose.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool has 11 parameters, no output schema, and no annotations, the description is too minimal. It does not explain return values, error conditions, or the effect of partial updates, leaving the agent underinformed.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Since the input schema has 100% description coverage for all 11 parameters, the description adds no significant meaning beyond what the schema already provides. It redundantly lists categories (CPU, RAM, name) without detailing any nuances.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states it modifies the configuration of a QEMU VM, listing specific aspects like CPU, RAM, and name. This verb-resource pairing is distinct from sibling tools that deal with starting, stopping, cloning, or destroying VMs.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Does the description explain when to use this tool, when not to, or what alternatives exist?

No guidance is provided on when to use this tool versus alternatives. For example, it does not indicate whether the VM must be stopped before modification, or mention scenarios where clone_vm or other tools might be preferred.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.